CDC MODEL AQUATIC HEALTH CODE

TESTS AND TESTING FREQUENCY FOR PUBLIC AQUATIC VENUES TEST FREQUENCY:

Free Cl Opening and every 2 to 4 hoursCombined Cl Opening and every 2 to 4 hourspH Opening and every 2 to 4 hoursTotal Alkalinity WeeklyHardness MonthlyCyanuric Acid 24 hrs after addition and every 2 weeks thereafterTDS QuarterlyCopper As recommended by manufacturer of reagent/systemIron Weekly

According to the Model Aquatic Health Code Steering Committee:

“Where portable spectrophotometer test kits are affordable, these are the most accurate kits available for use at poolside.”